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Observing Latent Heat with a Portable Hand Warmer DLESE Reviewed Collection
In this lesson plan students observe a teacher-directed demonstration that provides a conceptual understanding of latent heat. A reusable handwarmer that uses a solution of sodium acetate is used to illustrate phase changes and the release of energy and latent heat.
Intended for grade levels:
  • Middle (6-8)
  • High (9-12)
  • College (13-14)
Type of resource:
  • For the classroom:
    • Lesson plan
    • Presentation / Demo
  • Atmospheric science
  • Chemistry
  • Physics
Technical requirements:
No specific technical requirements, just a browser required
Cost / Copyright:
No cost
Copyright and Other Restrictions Information is Unknown
DLESE Catalog ID: DWEL-000-000-000-284
Educational standards:
  • National Science Education Standards (NSES):
    • 5-8:
      • B - Physical science:
        • Properties and changes of properties in matter
        • Transfer of energy
    • 9-12:
      • B - Physical science:
        • Interactions of energy and matter
      • D - Earth and space science:
        • Energy in the earth system
Related resources:
This resource is referenced by 'The Geological Society of America: Resources for K-12 Earth Science Educators'
Resource contact / Creator / Publisher:
Author: Mr Bryan L Aivazian
Natrona County School District